Question

value of Sin (20π/3)​

Answer 1

Explanation:

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Answer 2

Answer:

Concept: sin(n×90°-θ)= sinθ, where n is as even number

Given: Term= sin(20π/3)​

To find: The value of sin(20π/3)​

Explanation:

$sin(\frac{20\pi }{3})=sin(7\pi -\frac{\pi }{3} )$

$=sin(14\frac{\pi }{2} -\frac{\pi }{3})=sin(\frac{\pi }{3} )$

$=\frac{\sqrt{3} }{2}$